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103031221233101 = 7211318607769773
BaseRepresentation
bin10111011011010011010011…
…010101111010010111001101
3111111210200120221211202222112
4113123103103111322113031
5102001030420113424401
61003043520053353405
730462521465406500
oct2733232325722715
9444720527752875
10103031221233101
112a913328405437
12b680183638865
134564a58057b75
141b62a4840d137
15bda129e6e3bb
hex5db4d357a5cd

103031221233101 has 12 divisors (see below), whose sum is σ = 120913287991452. Its totient is φ = 87530949007488.

The previous prime is 103031221233043. The next prime is 103031221233203. The reversal of 103031221233101 is 101332122130301.

It can be written as a sum of positive squares in 2 ways, for example, as 591499428100 + 102439721805001 = 769090^2 + 10121251^2 .

It is a de Polignac number, because none of the positive numbers 2k-103031221233101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031221230101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9303879350 + ... + 9303890423.

It is an arithmetic number, because the mean of its divisors is an integer number (10076107332621).

Almost surely, 2103031221233101 is an apocalyptic number.

It is an amenable number.

103031221233101 is a deficient number, since it is larger than the sum of its proper divisors (17882066758351).

103031221233101 is a wasteful number, since it uses less digits than its factorization.

103031221233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18607769900 (or 18607769893 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 103031221233101 its reverse (101332122130301), we get a palindrome (204363343363402).

The spelling of 103031221233101 in words is "one hundred three trillion, thirty-one billion, two hundred twenty-one million, two hundred thirty-three thousand, one hundred one".

Divisors: 1 7 49 113 791 5537 18607769773 130254388411 911780718877 2102677984349 14718745890443 103031221233101